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sunlight is observed to focus at a point 185 cm behind alenswhat kind of lens is itwhat is its power in
the electric field midway between two equal but opposite point charges is 845 nc and the distance between the charges
if ethyl benzoate is treated with phenyl magnesium bromide 11 ratio a one to one mixture of ethyl benzoate and
a lead ball is dropped into a lake from a diving board 50 mabove the water after entering the water it sinks to
during the launch from a board a divers angular speed abouther center of mass changes from zero to 700 rads in 310
how many grams of oxygen are needed to react with 250g of mg how many grams of mgo will
a surface encloses the charges q1 32 microc q2 69 microc and q3 -41 microc find the electric flux through the
nerve cells are long thin cylinders along which electric disturbances nerve impulses travel the cell membrane if a
if 012 m of h2so4 and 012 m hc1 were used to titrate the same amount of soda ash and the consumed volume of h2so4 was
two point charges of equal magnitude are d 80 cm apart at the midpoint of the line connecting them their combined
a container holds a gas consisting of 39 moles of nitrogen molecules one in a million of these molecules has lost a
the assay of a soda ash sample was reported as 6521 na2co3 express the carbonate content in terms of percent co2 and
a rookie quaterback throws a football with an initial upwardvelocity component of 130 ms and ahorizontal velocity
the soda ash in your analysis was assumed to be pure na2co3 how would the volumes change if some of the na2co3 were
a physics book slides off a horizontal table top with a speedof 115 ms it strikes the floor in0500 s ignore air
some european trucks run on energy stored in a rotatingflywheel with an electric motor getting the flywheel up to its
the soda ash in your analysis was assumed to be pure na2co3 if some of the na2co3 is replaced by an equal number of
a concentration cell consists of two h2h half cells half cell a has h2 at 087 atm bubbling into 020 m hcl half cell b
an arrow is fired with a speed of 200 ms at a block ofstyrofoam resting on a smooth surface the arrow penetrates
the speed of light in ice is 229x10 8 ms what is the index of refraction of
1 for the 942 mmol of benzoin what is the minimum amount in mmol of nabh4 needed for this reduction look at balanced
a 350kg sailboat has an acceleration of 62ms2 at an angle of 64 degrees north of east find the magnitude and direction
the driver of a truck slams on thebrakes when he sees a tree blocking the road the truck slows downuniformly with